#535BF0
Closest named color: Neon Blue (#4361EE). oklch(55.6% 0.22 274.3), rgb(83, 91, 240).
Aa
White text reads best on this color (5.09:1).
About this color
#535BF0 is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.220 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Neon Blue (#4361EE), ΔE 0.021 away. White text reads best on it, at 5.09:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.220) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 4.12:1 |
| White text | 5.09:1 |
Values
| HEX | #535BF0 |
| RGB | rgb(83, 91, 240) |
| HSL | hsl(237, 84%, 63%) |
| OKLCH | oklch(55.6% 0.22 274.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #535BF0 | 5.09:1 | AA | Lc -80.0 | Fine for body text |
| Black text on #535BF0 | 4.12:1 | AA large text | Lc 29.5 | Dividers and decoration only |
| #535BF0 text on white | 5.09:1 | AA | Lc 74.6 | Content text, not long reading |
| #535BF0 text on black | 4.12:1 | AA large text | Lc -27.1 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E4E9FE
oklch(93.7% 0.029 275.2)
-
Step 200
200
#CED7FE
oklch(88.5% 0.055 275)
-
Step 300
300
#ADBCFF
oklch(80.8% 0.096 274.3)
-
Step 400
400
#8497FF
oklch(70.7% 0.153 274)
-
Step 500
500
#6978FF
oklch(63.1% 0.199 274.4)
-
Step 600
600 (this color)
#535BF0
oklch(55.6% 0.22 274.3)
-
Step 700
700
#4449D1
oklch(49% 0.205 274.3)
-
Step 800
800
#383DA9
oklch(42.6% 0.17 274.5)
-
Step 900
900
#2F3686
oklch(37.7% 0.132 274.4)
-
Step 950
950
#1B214E
oklch(27.1% 0.082 273.9)
#535BF0 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #0075F5 | 0.070 |
| Deuteranopia (no green cones) | #0067ED | 0.057 |
| Tritanopia (no blue cones) | #00819D | 0.180 |
| Achromatopsia (no color) | #6E6E6E | 0.220 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #535BF0
#535BF0
oklch(55.6% 0.22 274.3)
- #897100
#897100
oklch(55.5% 0.114 94.1)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #535BF0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.021
- Warm Blue #4B57DB ΔE 0.035
- Royal Blue #4169E1 ΔE 0.042
- Azul #1D5DEC ΔE 0.050
- Dark Periwinkle #665FD1 ΔE 0.056
- Bright Blue #0165FC ΔE 0.057
- Cerulean Blue #056EEE ΔE 0.061
- Slate Blue #6A5ACD ΔE 0.063
Use #535BF0 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.